- 作者: 趙敏勳,盧鴻華,蔡明暸,何美嬋
- 作者服務機構: Department of Chemical and Materials Engineering, National Chin-Yi University of Technology
- 中文摘要: The self-assembly of NiCl26H2O with a diaminodiamide ligand 4,8-diazaundecanediamide (L-2,3,2) gave a [Ni(C9H20N4O2)(Cl)(H2O)]Cl×2H2O (1). The structure of 1 was characterized by single-crystal X-ray diffraction analysis. Structural data for 1 indicate that the Ni(II) is coordinated to two tertiary N atoms, two O atoms, one water and one chloride in a distorted octahedral geometry. Crystal data for 1: orthorhombic, space group P 21nb, a = 9.5796(3) A, b = 12.3463(4) A, c = 14.6305(5) A, Z = 4. Through NH×××Cl-Ni (H×××Cl 2.42 A, N···Cl 3.24 A, NH×××Cl 158°) and OH×××Cl-Ni contacts (H×××Cl 2.36 A, O×××Cl 3.08 A, OH×××Cl 143°), each cationic moiety [Ni(C9H20N4O2)(Cl)(H2O)]+ in 1 is linked to neighboring ones, producing a charged hydrogen-bonded 1D chainlike structure. Thermogrametric analysis of compound 1 is consistent with the crystallographic observations. The electronic absorption spectrum of Ni(L-2,3,2)2+ in aqueous solution shows four absorption bands, which are assigned to the 3A2g R 3T2g, 3A2g R 1Eg, 3A2g R 3T1g, and 3A2g R 3T1g transitions of triplet-ground state, distorted octahedral nickel(II) complex. The cyclic volammetric measurement shows that Ni2+ is more easily reduced than Ni(L-2,3,2)2+ in aqueous solution.
- 英文摘要: --
- 中文關鍵字: Self-assembly; Diaminodiamide; Nickel(II); Complex
- 英文關鍵字: --